Office 2007 keeps configuring itself over and again

I have used Office without any hassle for several years in Win7, but recently I re-arranged the content of the hard drive so that downloads would go into a separate partition. Since then, when I want to open a WORD or EXCEL file, there is minutes of delay while Office 'configures' itself. How can I restore proper functioning ?

Unfortunately it's a well-known problem for both Office 2007 and Office 2010.

Method 1
In Windows 7/Vista, click Start, click All Programs, click Accessories, and then select Run.
In Windows XP, click Start, and then click Run.
Type (or copy and paste) the following command, and then press Enter:

Method 2
Alternatively, copy and paste the following into Notepad then save it as something like norereg.reg to your desktop then double-click on it to import it into the registry. (Important: Make sure there is a blank line after "NoReReg"=dword:00000001.)

Method 3
If for any reason this doesn't work then navigate in an Explorer window to C:\Program Files\Common Files\microsoft shared\OFFICE12\Office Setup Controller and rename SETUP.EXE to something like SETUP(DISABLED).EXE. This will stop the Configuration Wizard from running but can always be reversed if you DO want to change Office 12's setup.